Camera Disconnects

[Haselsmasher]

I put this question as a response to a previous thread a week ago. I didn't get any responses in that thread so I'll start a new thread - in case the previous one was missed.

I have a Wanscam HW0043 that is frequently disconnecting from ZM. I'm getting frequent "Signal" events in the event log - where the Notes section report "Signal Reacquired".

The debug logs have lots of "Approaching buffer overrun..." errors as you'll see below.

I've pasted two sections of log that might be helpful to someone more knowledgeable than me.
* The first shows where apparently a frame read from the camera generates an error.
* The second group shows the Signal:Lost error, then a variety of Approaching buffer overrun warnings, then other stuff, then Signal:Lost.

In my previous posts I've talked of a multi-monitor configuration off one camera. I've taken it to one monitor with one detection zone.....just to simplify things in the hopes of honing in on this disconnect issue.

I've also slowed down the FPS on the camera to 15 fps.

At my system level I have 8GB of memory and System Monitor only shows 2GB being used.

Any suggestions?

Thanks.

Jim

==============================================================

zm_debug.log.26000:08/03/17 10:57:12.651648 zmc_m1[26000].INF-zm_ffmpeg_camera.cpp/163 [av_read_frame returned "End of file". Reopening stream.]
zm_debug.log.26000:08/03/17 10:57:12.706276 zmc_m1[26000].ERR-zm_ffmpeg_camera.cpp/167 [Unable to read packet from stream 0: error -541478725 "End of file".]

==============================================================

10:57:12.814847 zma_m1[26002].WAR-zm_monitor.cpp/1429 [Signal: Lost]
10:57:13.132120 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:13.433124 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:13.725902 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:14.010374 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:14.313178 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:14.597492 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:14.915162 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:15.449588 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:15.743134 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:16.027626 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:16.613976 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:16.898709 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:17.433100 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:17.726661 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:18.011154 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:18.317577 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:18.605059 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:18.897723 zma_m1[26002].WAR-zm_monitor.cpp/1324 [Approaching buffer overrun, consider slowing capture, simplifying analysis or increasing ring buffer size]
10:57:19.200399 zma_m1[26002].WAR-zm_monitor.cpp/1429 [Signal: Reacquired]
10:57:19.226202 zma_m1[26002].INF-zm_monitor.cpp/1614 [NB: 23480 - Gone into alarm state]
10:57:19.276293 zma_m1[26002].INF-zm_monitor.cpp/1660 [NB: 23480 - Opening new event 997, alarm start]
10:57:19.301517 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 1]
10:57:19.306026 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 2]
10:57:19.310504 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 3]
10:57:19.314914 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 4]
10:57:19.320258 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 5]
10:57:19.324801 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 6]
10:57:19.329303 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 7]
10:57:19.333741 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 8]
10:57:19.338256 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 9]
10:57:19.342677 zma_m1[26002].DB1-zm_event.cpp/521 [Writing pre-capture frame 10]
10:57:19.347749 zma_m1[26002].DB1-zm_event.cpp/535 [Adding 10/10 frames to DB]
10:57:19.394105 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 11]
10:57:19.399724 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 11 of type "Alarm" to DB]
10:57:19.453030 zma_m1[26002].INF-zm_monitor.cpp/1704 [NB: 23481 - Gone into alert state]
10:57:19.485996 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 12]
10:57:19.490588 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 12 of type "Normal" to DB]
10:57:19.520442 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 13]
10:57:19.525128 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 13 of type "Normal" to DB]
10:57:19.553983 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 14]
10:57:19.558555 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 14 of type "Normal" to DB]
10:57:19.587610 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 15]
10:57:19.592116 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 15 of type "Normal" to DB]
10:57:19.621288 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 16]
10:57:19.626133 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 16 of type "Normal" to DB]
10:57:20.156129 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 17]
10:57:20.160900 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 17 of type "Normal" to DB]
10:57:20.197037 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 18]
10:57:20.201785 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 18 of type "Normal" to DB]
10:57:20.264218 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 19]
10:57:20.269004 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 19 of type "Normal" to DB]
10:57:20.331154 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 20]
10:57:20.335961 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 20 of type "Normal" to DB]
10:57:20.364738 zma_m1[26002].DB1-zm_event.cpp/563 [Writing capture frame 21]
10:57:20.369518 zma_m1[26002].DB1-zm_event.cpp/577 [Adding frame 21 of type "Normal" to DB]
10:57:20.406699 zma_m1[26002].INF-zm_monitor.cpp/1711 [NB: 23491 - Left alarm state (997) - 21(1) images]
10:57:20.439386 zma_m1[26002].INF-zm_monitor.cpp/1716 [NB: 23491 - Closing event 997, alarm end]
10:57:58.025386 zma_m1[26002].INF-zm_monitor.cpp/1296 [NB: 24000 - Analysing at 10.99 fps]
10:59:04.991896 zma_m1[26002].INF-zm_monitor.cpp/1296 [NB: 25000 - Analysing at 15.15 fps]
11:00:22.875640 zma_m1[26002].WAR-zm_monitor.cpp/1429 [Signal: Lost]

[Baylink]

Is it wifi?

What does 'df | grep shm' look like?

Current Received Wisdom is '5fps is enough, unless you have a really good reason it's not'.